Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.
Read MoreTanzanite is the blue to violet to purple variety of the mineral zoisite. It is mined commercially only in one area of the world: the Merelani Hills of Tanzania, which is where it gets its name.
Read MoreLush blue velvet. Rich royal purple. Exotic tanzanite is found in only one place on earth, near majestic Kilimanjaro
Read MoreLearn about the factors that make tanzanite so desirable.
Read MoreTanzanite is relatively new to the coloured stone galaxy. Almost overnight, tanzanite became popular with leading jewellery designers and other gem professionals, as well as with customers who had an eye for beautiful and unusual gems.
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A recently identified mineral is found, in whisker-like form, in a gem-quality tanzanite host.
Read MoreThey met in the queue to get into the GIA Alumni Association Tucson party – and changed the course of their lives forever.
Read MoreDesigners respond to market trends; demand for diamonds better than expected. Plus: Holiday season diamond marketing campaign gets funding boost.
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A tanzanite displayed crystallographically aligned, vividly iridescent colours resulting from fine separations along the stone’s cleavage planes.
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The GIA Museum showcases contemporary jewellery pieces donated by the American Jewelry Design Council.
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